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View Full Version : basic gchem q - salt hydrolysis pidbull 08-22-2008, 10:26 PM How do I hydrolyze these salts? FeCl3 + H2O.... AlCl3 + H20... both are supposed to result in acidic solutions, I don't know how to do the reaction. ucla2134 08-22-2008, 10:30 PM How do I hydrolyze these salts? FeCl3 + H2O.... AlCl3 + H20... both are supposed to result in acidic solutions, I don't know how to do the reaction. --> Fe (OH)3 + HCL --> Al (OH)3 + HCL pidbull 08-23-2008, 08:59 AM --> Fe (OH)3 + HCL --> Al (OH)3 + HCL thanks but how did we get 3 OH's or do we assume unlimited H20? Mamona 08-23-2008, 10:49 AM thanks but how did we get 3 OH's or do we assume unlimited H20? Pidbull use oxidation number that is why OH3, the 3 comes from the Fe... joonkimdds 08-23-2008, 01:36 PM where did other 2 Cl go? r we not supposed to balance them? GCT 08-23-2008, 02:43 PM How do I hydrolyze these salts? FeCl3 + H2O.... AlCl3 + H20... both are supposed to result in acidic solutions, I don't know how to do the reaction. Remember aluminum is amphoteric, the mechanism is a bit unique here, a hydrate with water forms first; you just need to know the oxidation state of the transition metal to know the final metal hydroxide compound. http://en.wikipedia.org/wiki/Hydrolysis The chlorine is an ion in the water HCl is not formed. The final products are metal hydrate and hydronium ion . |